Q: What are the prime factors of the number 378,384,735?

 A: 3, 5, 43, 173, 3391

Why are those the prime factors of the number 378,384,735?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 378,384,735

378,384,735
Factor Arrows
3126,128,245
Factor Arrows
525,225,649
Factor Arrows
43586,643
Factor Arrows
1733,391

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

3, 5, 43, 173, 3391

We can check our work by multiplying all of the prime factors together: 3 x 5 x 43 x 173 x 3,391 = 378,384,735

This can also be written as 31 x 51 x 431 x 1731 x 3,3911 = 378,384,735

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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